Question

The density of ice is less than that of water. How?​

Answer 1

When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.

Answer 2

Answer:

Ice is less denser than water because in ice, the molecules arrange themselves in a rigid tetrahedral structure due to which cage like spaces remain in their bonding but water molecules remain in linear bonding form. As the volume of ice becomes greater, it is less denser. Density of ice is less than that of water because of open porous structure of ice due to hydrogen bonding